astah Community Edition Alternatives

PlantUML

PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams. The generator can be run anywhere within JVM and integrated with various application such as wiki, text editor, IDE, programming language, documentation generator, and others. Mostly based on Graphviz. Can render various diagram syntax such as PlantUML, Dot, and Ditaa.

Features:

• Create UML entities
• Flow chart
• Portable
• Text Based Format
• UML diagrams
• VCS Friendly
• Workflow

StarUML

StarUML is a program to develop fast, flexible, extensible, featureful, and freely-available UML/MDA platform running on Win32 platform. The goal of the StarUML project is to build a software modeling tool and also platform that is a compelling replacement of commercial UML tools such as Rational Rose, Together and so on.

Features:

• Sequence Diagrams
• Class Diagrams
• Entity Relationship Diagrams
• Export to PDF
• UML diagrams

Umbrello

Umbrello is a Unified Modelling Language (UML) modelling tool and code generator. It can create diagrams of software and other systems in the industry-standard UML format, and can also generate code from UML diagrams in a variety of programming languages.

Visual Paradigm

Visual Paradigm for UML (VP-UML) is a UML design tool and UML CASE tool designed to aid software development. VP-UML supports key modeling standards such as Unified Modeling Language (UML) 2.4, SysML, ERD, DFD, BPMN 2.0, ArchiMate 2.0, etc. It supports software development teams in requirements capturing, software planning (use case analysis), code engineering, class modeling, data modeling, etc. A Community Edition is available for FREE for non-commercial use.

Features:

• BPMN2 animation
• Diagrams
• Entity Relationship Diagrams
• Ide integration
• SAML Single Sign-On
• User story mapping
• Website wireframing
• Wireframing

Papyrus UML

Graphical modelling open source UML2 tool based on Eclipse environment. Papyrus is aiming at providing an integrated and user-consumable environment for editing any kind of EMF model and particularly supporting UML and related modeling languages such as SysML and MARTE. Papyrus provides diagram editors for EMF-based modeling languages amongst them UML 2 and SysML and the glue required for integrating these editors (GMF-based or not) with other MBD and MDSD tools.